Data plotted here is from DINOSTRAT, available via Zenodo: DOI: 10.5281/zenodo.7791273. Please cite Bijl, 2022 https://doi.org/10.5194/essd-14-579-2022 when using this data.


Plots are based on the following information

Location	Taxon	Source	Calibration	Age (Ma)	Paleolatitude
Borneo	Cleistosphaeridium placacanthum	Besems, 1993	0 in stage_Rupelian	33.9	10.588000000000001
Marche	Cleistosphaeridium placacanthum	Zevenboom, 1995	0 in mag_C4n	8.125	41.181875
1171	Cleistosphaeridium placacanthum	Bijl et al., 2013	0.25 in mag_C23n	51.48475	-63.56299508058824
1171	Cleistosphaeridium placacanthum	Bijl et al., 2013	1 in mag_C24n.2r	53.12	-63.76454637647059
1172	Cleistosphaeridium diversispinosum	Bijl et al., 2013	0 in mag_C17n	38.081	-57.64809447789473
1172	Cleistosphaeridium diversispinosum	Bijl et al., 2013	1 in mag_C22r	49.666	-59.178948572631576
1172	Cleistosphaeridium polypetellum	Bijl et al., 2013	0.25 in mag_C23n	51.48475	-59.41928011210526
1172	Cleistosphaeridium polypetellum	Bijl et al., 2013	0 in mag_C24n	53.9	-59.73843378947368
Massignano_Monte Cagnero	Cleistosphaeridium ancyreum	Brinkhuis and Biffi, 1993	0.6 in mag_C17n	37.1762	34.766530268804296
Massignano_Monte Cagnero	Cleistosphaeridium placacanthum	Brinkhuis and Biffi, 1993	0.75 in mag_C13r	34.07	35.54370507694478
1168	Cleistosphaeridium placacanthum	Brinkhuis et al., 2003a	0 in mag_C5Dn	17.466	-47.619535603529414
552	Cleistosphaeridium placacanthum	Brown and Downie, 1984	0.75 in nan_n_NP13	49.2612775	46.96738012036429
553	Cleistosphaeridium placacanthum	Brown and Downie, 1984	0.5 in nan_n_NP13	49.722815	46.95736062102858
555	Cleistosphaeridium diversispinosum	Brown and Downie, 1984	0 in nan_n_NP10	56.001	46.50457344
nw Pacific	Cleistosphaeridium ancyreum	Bujak and Matsuoka, 1986	0.5 in stage_Langhian	14.905000000000001	50.93005
North Sea Central Graben	Cleistosphaeridium polypetellum	Bujak and Mudge, 1994	0.25 in nan_n_NP15	45.889075	49.58490339143421
North Sea Compilation	Cleistosphaeridium placacanthum	Powell, 1992	0.9 in plfor_A_N12	12.077	48.88483762235294
North Sea Compilation	Cleistosphaeridium insolitum	Powell, 1992	0.33 in plfor_A_P16/P17	35.0817	45.383648094777776
North Sea Compilation	Cleistosphaeridium insolitum	Powell, 1992	0.05 in plfor_A_P8	50.7923435	43.59769096493895
North Sea Compilation	Cleistosphaeridium varispinosum	Riding and Thomas, 1992	0 in amm_b_Clydoniceras discus	165.5	39.9405775
403-406	Cleistosphaeridium ancyreum	Costa and Downie, 1979	0.6 in nan_n_NP12	51.559534	46.65836935039895
mid-Waipara	Cleistosphaeridium ancyreum	Hollis et al., 2009	0.4 in nan_n_NP13	49.90743	-48.19085747964
mid-Waipara	Cleistosphaeridium ancyreum	Hollis et al., 2009	0.25 in nan_n_NP14	48.280555	-47.822942952140004
361	Cleistosphaeridium huguoniotti	Davey, 1978	1 in nan_c_NC6b	119.40135000000001	-42.200174838
361	Cleistosphaeridium huguoniotti	Davey, 1978	0 in nan_c_NC7a	119.40135000000001	-42.200174838
361	Cleistosphaeridium flexuosum	Davey, 1978	0.75 in nan_c_NC7b	114.90584999999999	-41.990924297999996
Chesapeak Bay	Cleistosphaeridium placacanthum	De Verteuil and Norris, 1996	0.2 in nan_n_NN6	13.30432	36.02417026145882
Scotian Margin	Cleistosphaeridium placacanthum	Williams et al., 1993	0.5 in stage_Lutetian	44.55	37.796633
Scotian Margin	Cleistosphaeridium ancyreum	Fensome et al., 2008	0.5 between 1 nan_n_NN10 1 nan_n_NN11	6.91	41.64924772941176
Scotian Margin	Cleistosphaeridium diversispinosum	Fensome et al., 2008	0.5 between 1 nan_n_NN10 1 nan_n_NN11	6.91	41.64924772941176
Suvlu	Cleistosphaeridium polypetellum	King et al., 2018	0 in nan_n_NP10	56.001	37.79725933333333
Suvlu	Cleistosphaeridium diversispinosum	King et al., 2018	0.5 in nan_n_NP11	53.51103	38.028522638425
Suvlu	Cleistosphaeridium diversispinosum	King et al., 2018	0.55 in nan_n_NP13	49.6305075	38.38864482773125
Salt Range	Cleistosphaeridium diversispinosum	Köthe et al., 1988	0 in nan_n_NP9	57.2231	1.8398857389999965
Oga	Cleistosphaeridium ancyreum	Matsuoka et al., 1987	1 in plfor_A_N11	13.4	27.157590625
765A	Cleistosphaeridium placacanthum	McMinn, 1992	0.5 in plfor_A_N13	11.8	-22.48124
Wells 15, 21	Cleistosphaeridium polypetellum	Mudge and Bujak, 1996	0.8 in plfor_A_P10	44.15383	49.609248280363154
Wells 15, 21	Cleistosphaeridium placacanthum	Mudge and Bujak, 1996	0.67 in plfor_A_P12	41.3433416	49.972181439499366
Isle of Skye	Cleistosphaeridium varispinosum	Riding and Thomas, 1997	0.85 in amm_b_Macrocephalites herveyi	164.7035	43.07289414833333
Isle of Skye	Cleistosphaeridium varispinosum	Riding and Thomas, 1997	0.9 in amm_b_Macrocephalites herveyi	164.66899999999998	43.07693521
North Sea Coast	Cleistosphaeridium varispinosum	Riley and Fenton, 1982	1 in amm_b_Sigaloceras calloviense	163.47	36.55438875
907	Cleistosphaeridium placacanthum	Schreck et al., 2012	0.5 in mag_C5n.2n	10.52	64.79064738181819
Caucasus	Cleistosphaeridium varispinosum	Smelror and Lominadze, 1989	1 in amm_b_Proplanulites koenigi	163.87	37.64025
Zaragoza	Cleistosphaeridium varispinosum	Smelror et al., 1991	0.5 in amm_t_Bullatimorphites bullatus	164.985	29.453487525
Kong Karls Land	Cleistosphaeridium polytrichum	Smelror, 1988b	0.5 between 0 amm_b_Quenstedtoceras lamberti 1 amm_b_Quenstedtoceras mariae	161.055	67.01490723214286
Shukheir-1	Cleistosphaeridium ancyreum	Soliman et al., 2012	0.5 in nan_n_NN5	14.260200000000001	23.712235918153844
Shukheir-1	Cleistosphaeridium ancyreum	Soliman et al., 2012	0 in nan_n_NP12	52.93	14.130575926315789
Shukheir-1	Cleistosphaeridium diversispinosum	Soliman et al., 2012	0 in nan_n_NN2	22.68	20.9181804
Shukheir-1	Cleistosphaeridium placacanthum	Soliman et al., 2012	0 in nan_n_NP11	54.09206	13.85760313943158
Landana	Cleistosphaeridium diversispinosum	Steeman et al., 2020	0 in plfor_B_P5	57.101	-9.0312632275
1053	Cleistosphaeridium ancyreum	Van Mourik et al., 2001	0 in mag_C13r	35.102	27.198453133333334
1053	Cleistosphaeridium placacanthum	Van Mourik et al., 2001	0 in nan_c_CP15	37.77	26.909230775
1053	Cleistosphaeridium ancyreum	Van Mourik et al., 2001	0.9 in nan_c_CP14b	37.91568	26.9036231876
Dorset-Yorkshire	Cleistosphaeridium varispinosum	Woollam and Riding, 1983	1 in amm_b_Kosmoceras jason	163.3	38.52213057142857
Gulf Coast1	Cleistosphaeridium placacanthum	Wrenn and Kokinos, 1986	0.85 in plfor_A_N18/N19	4.5725	28.443552925000002
North Sea Basin	Cleistosphaeridium varispinosum	Copestake and Partington, 2023	0.9 in amm_b_Oxycerites orbis	165.522	43.09463173142857

Histogram